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Effect of Vibrational Amplitude on Friction and Wear Properties of Magnetorheological Elastomer
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  • Journal title : Tribology and Lubricants
  • Volume 32, Issue 2,  2016, pp.39-43
  • Publisher : The Korean Society of Tribologists and Lubrication Engineers
  • DOI : 10.9725/kstle.2016.32.2.39
 Title & Authors
Effect of Vibrational Amplitude on Friction and Wear Properties of Magnetorheological Elastomer
Lian, Chenglong; Lee, Kwang-Hee; Lee, Chul-Hee;
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Magnetorheological elastomers (MREs) are a type of “smart” material, and their properties can be controlled rapidly and reversibly under the influence of an external stimulus. The application of an external magnetic field can change the shear modulus, hardness, and friction coefficient of MREs. The friction can cause vibration; moreover, the vibration can affect friction. The change of friction depends on the relative motion, normal force, roughness of the rubbing surfaces, material type, temperature, lubrication, relative humidity, and vibration condition. As MREs are a type of “smart material,” their friction coefficient can be reduced by applying an external magnetic field—the applications of this feature in engineering have been widely studied. However, the friction properties of MREs under vibration have not been tested to date. In this study, MRE samples and a reciprocating friction tester were fabricated. The friction coefficient was measured to evaluate the friction properties under various vibration conditions; subsequently, the wear depth and wear surface profile of the MRE were observed in order to evaluate the wear properties. The results show that the friction coefficient of the MREs decreased when a magnetic field was applied. Moreover, the friction coefficient decreased when the vibrational amplitudes increased. The wear depth of the MRE also decreased as the vibrational amplitudes increased.
magnetorheological elastomer;friction coefficient;vibrational amplitude;
 Cited by
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